How to force single quotes by passing an argument?

[Suhaybu]

I'm a newbie who's been a black formatter enjoyer (using the VS Code extension) that discovered Ruff just today. However, I prefer single quotes over double quotes.

Is there a way I can force single quotes over double quotes without creating a .toml file?

Going through the documentation and information I could find about switching from double quotes to single quotes, the right way to do it according to the docs is as follows:

for pyproject.toml

[tool.ruff.format]
quote-style = "single"

for ruff.toml

[format]
quote-style = "single"

When using the black formatter, I was able to achieve the same without making a toml file by passing --single-quotes as an argument.

My VS Code's settings.json had this line.

"python.formatting.blackArgs": ["--single-quotes"],

Is there any way I can force single quote without creating a toml file when using Ruff? In my mind I had these two possibilities for args:

Maybe like this

"ruff.format.args": ["--single-quotes"]

Or like this

"ruff.format.args": ["--quote-style", "single"]

Note

I didn't put this in a feature request because I'm not entirely sure if I've overlooked something or if such a feature doesn't actually exist.

[charliermarsh]

Thanks for the thorough issue! This actually doesn't exist yet, but it's about to exist: #9599. We're adding a mechanism to provide any setting / configuration option via the CLI.

[Suhaybu]

That's awesome! It'll cover all use cases in that case.

Good luck and thank you for the speedy response. 👍

[AlexWaygood]

Yes! Specifically, once #9599 is merged, you'll be able to specify any configuration option from the CLI using "inline TOML". So to specify single-quotes for the formatter from the CLI, you'd use this command:

ruff format path/to/code --config "format.quote-style = 'single'"